// Copyright (c) 2026 Gordon Bolton. MIT License.

import { getActiveTab, saveActiveTab } from '../utils/storage.js';
import { loadHistory } from './history.js';
import { renderRequests } from './requests.js';

export function initTabs() {
  const downloadsTab = document.querySelector('[data-tab="downloads"]');
  const requestsTab = document.querySelector('[data-tab="requests"]');
  const historyTab = document.querySelector('[data-tab="history"]');
  
  if (!downloadsTab || !historyTab) return;
  
  // Load saved tab
  const savedTab = getActiveTab();
  if (savedTab === 'requests') {
    activateTab('requests');
  } else if (savedTab === 'history') {
    activateTab('history');
  } else {
    activateTab('downloads');
  }
  
  downloadsTab.addEventListener('click', () => activateTab('downloads'));
  if (requestsTab) {
    requestsTab.addEventListener('click', () => activateTab('requests'));
  }
  historyTab.addEventListener('click', () => activateTab('history'));
}

export function activateTab(tab) {
  const downloadsTab = document.querySelector('[data-tab="downloads"]');
  const requestsTab = document.querySelector('[data-tab="requests"]');
  const historyTab = document.querySelector('[data-tab="history"]');
  const downloadsSection = document.getElementById('tab-downloads');
  const requestsSection = document.getElementById('tab-requests');
  const historySection = document.getElementById('tab-history');
  
  // Remove active class from all tabs
  if (downloadsTab) downloadsTab.classList.remove('active');
  if (requestsTab) requestsTab.classList.remove('active');
  if (historyTab) historyTab.classList.remove('active');
  
  // Hide all sections
  if (downloadsSection) downloadsSection.classList.add('hidden');
  if (requestsSection) requestsSection.classList.add('hidden');
  if (historySection) historySection.classList.add('hidden');
  
  if (tab === 'downloads') {
    if (downloadsTab) downloadsTab.classList.add('active');
    if (downloadsSection) downloadsSection.classList.remove('hidden');
    saveActiveTab('downloads');
  } else if (tab === 'requests') {
    if (requestsTab) requestsTab.classList.add('active');
    if (requestsSection) requestsSection.classList.remove('hidden');
    saveActiveTab('requests');
    renderRequests();
  } else if (tab === 'history') {
    if (historyTab) historyTab.classList.add('active');
    if (historySection) historySection.classList.remove('hidden');
    saveActiveTab('history');
    loadHistory();
  }
}

export function goHome() {
  activateTab('downloads');
}